Substrate question

[Bartman]

Hi All,

I'm getting ready to setup my new 75G and I'm trying to decide what to do about substrate. I like the idea of a BB tank but I'm not sure I like the look. I was thinking of going with a 1" base but I'm wondering if it will just be a detritus trap (easy to collect debris and not deep enough to process it properly). Also, If I do this I'm wondering what size substrate to get. My return probably provides about 700gph to the top of the tank and my Tunze has about 1100gph at it's highest speed. I'd like to go with the smallest stuff that won't get blown around. Any suggestions?